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  2. Registered jack - Wikipedia

    en.wikipedia.org/wiki/Registered_jack

    RJ45 is often incorrectly used when referring to an 8P8C connector used for ANSI/TIA-568 T568A and T568B and Ethernet, however, the plug used for RJ45 is both mechanically and electrically incompatible with any Ethernet port: it cannot fit into an Ethernet port, and it is wired in a way that is incompatible with Ethernet. The connector commonly ...

  3. Modular connector - Wikipedia

    en.wikipedia.org/wiki/Modular_connector

    Right: RJ45 male connector (with key) Although commonly referred to as RJ45 in the context of Ethernet and category 5 cables, RJ45 originally referred to a specific wiring configuration of an 8P8C connector. [14] [15] [16] The original telephone-system-standard RJ45 plug has a key that excludes insertion in an un-keyed 8P8C socket. [17]

  4. Telephone jack and plug - Wikipedia

    en.wikipedia.org/wiki/Telephone_jack_and_plug

    Modular connector 6P6C plug (left) and 6P4C jack (right) A telephone jack and a telephone plug are electrical connectors for connecting a telephone set or other telecommunications apparatus to the telephone wiring inside a building, establishing a connection to a telephone network.

  5. Category 5 cable - Wikipedia

    en.wikipedia.org/wiki/Category_5_cable

    Category 5 cable is nearly always terminated with 8P8C modular connectors (often referred to incorrectly as RJ45 connectors [14] [15] [16]). The cable is terminated in either the T568A scheme or the T568B scheme. The two schemes work equally well and may be mixed in an installation so long as the same scheme is used on both ends of each cable.

  6. Ethernet physical layer - Wikipedia

    en.wikipedia.org/wiki/Ethernet_physical_layer

    A standard 8P8C (often called RJ45) connector used most commonly on category 5 cable, one of the types of cabling used in Ethernet networks Standard IEEE 802.3 (1983 onwards) Physical media Twisted pair, optical fiber, coaxial cable Network topology Point-to-point, star, bus Major variants

  7. British telephone socket - Wikipedia

    en.wikipedia.org/wiki/British_telephone_socket

    The most common type uses Category 5 cables (four twisted pairs with 100 ohm impedance) between 8P8C (colloquially and incorrectly called RJ45) room sockets and a central patch panel. The A and B wires of an analogue phone line appear in a structured cabling system usually on the centre pins of the 8P8C connector (pins 4 and 5; the blue/white ...

  8. Black Friday Origin: Why Is It Called 'Black Friday'? - AOL

    www.aol.com/lifestyle/black-friday-origin-why...

    Why wake up at 5 a.m. when you can simply get a deal by swiping on your phone? Amazon was the biggest winner brand-wise, with Walmart close behind it as the second-highest retailer in terms of ...

  9. Talk:8P8C - Wikipedia

    en.wikipedia.org/wiki/Talk:8P8C

    All of the registered jack names are for telephone wiring. RJ11 is the common single-line telephone wiring, and RJ45 is a special single-line modem wiring. The RJ45 registered jack has nothing whatsoever to do with Ethernet. The "jacks" are called "registered" because their specifications were registered with the FCC.

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